trigger_crawl · TrendRadar MCP: Risk & Policy

WHAT IT DOES

What trigger_crawl does on TrendRadar

AI agents invoke trigger_crawl to trigger actions in TrendRadar. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why trigger_crawl needs a policy

A crawl operation executes an automated data collection process whose effects depend on configuration and target URLs. This is Execute-class because it triggers external operations (web requests, data scraping) rather than merely reading cached data. Severity is high due to potential for excessive requests to external services, IP blocking, terms-of-service violations, or resource exhaustion.

From the tool's definition Tool named 'trigger_crawl' with empty description. The name 'trigger_crawl' indicates initiation of a web crawling operation, which is an external system operation that fetches data from third-party platforms (Zhihu, Bilibili, Wall Street News per server…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

trigger_crawl Rate-limited

trigger_crawl stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "trigger_crawl": {
      "limits": [
        {
          "counter": "trigger_crawl_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches TrendRadar, so you can run agents against it safely.

FAQ

Questions about trigger_crawl

What does the trigger_crawl tool do? +

trigger_crawl. It is categorised as a Execute tool in the TrendRadar MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on trigger_crawl? +

Register the TrendRadar MCP server in PolicyLayer and add a rule for trigger_crawl: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches TrendRadar. Nothing to install.

What risk level is trigger_crawl? +

trigger_crawl is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit trigger_crawl? +

Yes. Add a rate_limit block to the trigger_crawl rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block trigger_crawl completely? +

Set action: deny in the PolicyLayer policy for trigger_crawl. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides trigger_crawl? +

trigger_crawl is provided by the TrendRadar MCP server (ssdsalesman/trendradar). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.